Radek Machulka <radek.machulka <at> gmail.com> writes: > is there a way how to save more arrays into single npy (npz if possible) file > in loop? Something like: > > fw = open('foo.bar', 'wb') > while foo: > arr = np.array(bar) > np.savez_compressed(fw, arr) > fw.close() > > Or some workaround maybe? I go through hundreds of thousands arrays and can > not keep them in memory. Yes, I can save each array into single file, but I > would better have them all in single one. [clip]
You can take a look at the implementation of savez_compressed. The npz files are nothing but zip files with npy format files inside them, so you should be able to build them up by stuffing files saved by np.save() into a zipfile.ZipFile. However, a better option could be to use a another data format such as hdf5. -- Pauli Virtanen _______________________________________________ NumPy-Discussion mailing list NumPy-Discussion@scipy.org http://mail.scipy.org/mailman/listinfo/numpy-discussion